Don't try to link private CYaml in CMake

As of jpsim/Yams#343 and Yams 5.0.0, CYaml is now a
private static lib, and we no longer have to link it.

Author: stephank

Sources/SwiftDriver/CMakeLists.txt

@@ -131,7 +131,6 @@ target_link_libraries(SwiftDriver PUBLIC
   TSCUtility
   SwiftOptions)
 target_link_libraries(SwiftDriver PRIVATE
-  CYaml
   Yams
   CSwiftScan)